>> and it was maggie who taught me that if you are trying to get your weight under control, diet is 80% of the battle. if you are worried about i didn't work out. what did you eat today? >> what people don't realize how important it is for to be mentally fit. so many people in the united states like suffer from anxiety, depression and myself that's part of my book what i suffered as a kid was anxiety disorder and how i noticed that what i eat really affects how i'm going to feel that day. >> for you, what are key good mood foods for you? >> well, i have -- i have trigger foods that i must stay away from number one is sugar. but i also believe that everything in moderation. there are times like after a weigh in i have to celebrate with a coca-cola or my chocolate cake. the must-have. >> coke and chocolate cake.